Incidence and allocation of arsenic in the coastal area of Sindh, Pakistan.

Along with the trace elements, arsenic appears to have an exceptional place in the environment. In recent times there has been rising anxieties regarding arsenic associated troubles. Incidence of arsenic pollution has been reported worldwide. In Pakistan, the major natural arsenic sources are weathering and attrition of arsenic-containing rocks and soil. Arsenic concentrations in natural uncontaminated soil and sediments range from 4 to 150 mg/kg. Inside study area at few places eminent levels of dissolved As are found in sediments collected from the effluent discharge point at industrial zones, low lying delta and flood plain areas. The present study has not acknowledged a precise source of As in the study area, although several possible sources are proposed for elevated concentration. The most important sources of arsenic in the study area have been ascribed to the release from human actions such as industrial waste matter discharging from industrial activities and power generation form Port Bin Qasim. The quantity of arsenic present are of poisonous inorganic forms, it may cause severe unfavorable effects on the environment and public health.